Part 5 — Understanding Your DST Tax Package
DST.EDU Special Series
October 18, 2026
By Al DiNicola, AIF®
Private Fund Advisor
DST 1031 Specialist
Fiduciary Capital Management, LLC
What Investors and Their CPAs Need to Know About DST Tax Reporting
One question I hear from investors is:
“If I don’t personally make the mortgage payment or pay the property tax bill, why are mortgage interest and real estate taxes showing up in my DST tax package?”
The answer goes back to how a qualifying DST is structured for federal tax purposes.
A DST may own a large commercial property—a $50 million apartment community, for example—with its own mortgage, property taxes, insurance, maintenance costs, management expenses, and other operating costs.
You obviously are not personally paying the entire mortgage or property tax bill. Instead, your annual tax package may provide your applicable proportionate share of the tax information associated with the property.
Here’s the important part: the expenses occur at the property level, but the applicable tax information may be allocated to the individual DST investor.
Why the Underlying Property Matters
Revenue Ruling 2004–86 helps explain this relationship.
In the specific DST structure addressed by the IRS, beneficial owners were treated for federal income-tax purposes as owning proportionate interests in the underlying trust property. That is why your DST tax package may contain information tied to the actual operation and financing of the real estate, including mortgage interest, real estate taxes, operating expenses, and depreciation. Once you begin thinking of the tax package as information flowing from the underlying property, the numbers become easier to understand.
A Simple Example
Assume an investor’s annual DST tax statement includes:
- Passive rental real estate income: $4,542
- Mortgage interest: $8,750
- Real estate taxes: $2,100
- Other property expenses: $3,250
- Depreciation: Reported separately
The investor is not receiving the property’s entire mortgage-interest expense or property-tax bill. The tax package is providing the information applicable to that investor’s interest. Those amounts are then reviewed by the investor’s CPA along with the rest of the tax package.
Mortgage Interest: Property-Level Debt vs. Your Personal Mortgage
Mortgage interest is one area where the distinction is especially important. A DST property may have substantial financing, but it is not the same as a mortgage you personally obtained from a bank. You did not negotiate the property loan directly with the lender, and you are not making the monthly mortgage payments yourself. Yet your annual tax package may still include an allocation of mortgage interest associated with the underlying property.
Property-level debt is different from a mortgage personally originated by the investor.
The financing exists at the property level, while the annual tax package may reflect your applicable share of the related tax information.
Why This Matters in a §1031 Exchange
This distinction can become particularly important when the DST was acquired as replacement property in a §1031 exchange. A DST may include property-level financing, and that financing can be relevant when the investor and tax professionals evaluate replacement-property value and debt considerations. But I would not look at the mortgage-interest amount on the annual tax statement and try to reconstruct the §1031 exchange from it.
The exchange calculation and the annual tax-reporting calculation serve different purposes. The §1031 exchange should be evaluated based on the investor’s relinquished property, replacement property, equity, debt, and individual exchange circumstances.
Real Estate Taxes and Operating Expenses
The same general concept applies to real estate taxes and other property expenses. A commercial property may incur substantial property taxes, insurance, repairs, maintenance, management expenses, utilities, and other costs. Your tax package may show the amounts applicable to your interest.
In our example:
- Real estate taxes: $2,100
- Other property expenses: $3,250
These figures are part of the overall tax picture and help explain why taxable rental income may differ from the cash distributions you received.
Don’t Reconstruct the Allocation Yourself
One mistake I caution investors against is taking the property’s financial statement and trying to calculate their own tax allocation. You may know the property’s total mortgage interest expense and believe you know your percentage ownership. It can seem logical to multiply every expense by that percentage. I would not recommend doing that.
Tax allocations can be affected by the investment amount, ownership period, financing, tax classification, depreciation schedules, and sponsor accounting records.
For example, an investor who purchased a DST interest partway through the year may not have the same reporting period as an investor who owned the investment for the full year.
Individual tax history may also matter, particularly when the DST was acquired through a §1031 exchange.
That is why investors should work from the annual tax package prepared for their specific investment rather than trying to recreate the numbers themselves.
The Expenses Help Explain the Tax Result
Mortgage interest, real estate taxes, and operating expenses are not simply extra numbers on the statement. They help explain the tax result.
As we discussed in Part 4, cash distributions and taxable rental income may be different. Property-level expenses, together with depreciation and other applicable tax items, are part of the reason. So, when you see several expense categories on your DST statement, think of them as pieces of the overall tax picture.
The Investor’s Share Is What Matters
A $50 million property may have millions of dollars of annual expenses. The individual DST investor is not reporting the entire property’s numbers. The investor is working with the applicable tax information provided for his or her DST interest.
This is important because property-level financial statements should not simply be carried over to an individual investor’s tax return. Your CPA should rely on the investor-specific tax package and supporting schedules.
A Good Question to Ask Your CPA
A useful question is:
“How are the mortgage interest, real estate taxes, property expenses, and depreciation shown in my DST tax package affecting the rental income reported on my return?”
That gets directly to the issue without requiring you to calculate the allocations yourself.
The Bottom Line
Mortgage interest, real estate taxes, and operating expenses are incurred at the underlying property level, but the DST’s annual tax reporting may provide the applicable information associated with your investment. You are not personally paying the property’s entire mortgage or tax bill. You are receiving tax information reflecting the portion applicable to your DST interest. The key is not to reconstruct the allocations yourself from the property’s overall financial statements.
Use the annual DST tax package and let your CPA determine how the information applies to your individual return.
Investor/CPA Takeaway
Use the annual DST tax package for the investor’s actual reported allocation. The underlying property may have millions of dollars of mortgage interest, real estate taxes, and operating expenses, but the investor reports the applicable tax information for his or her DST interest—not the entire property’s figures.
In Part 6 of our DST.EDU series, we will look at:
Cost Segregation in a DST: Understanding 5‑, 7‑, 15‑, 27.5- and 39-Year Property.
Educational Note
This article is intended solely for general educational and informational purposes. It is not individual tax, legal, securities, or investment advice. DST tax reporting and investor allocations can vary by investment, sponsor, property, financing, ownership period, reporting method, tax basis, and individual circumstances. Investors should provide their complete DST tax package to their CPA or other qualified tax professional and obtain advice based on their individual situation.
Delaware Statutory Trusts (DSTs) have become a notable part of commercial real estate investing. As Al DiNicola emphasizes, a DST is a structure, not an asset class, the focus should remain on the quality of the underlying property and how it fits your goals. DSTs are for accredited investors and carry risks, i.e. illiquidity, real estate market fluctuations, and sponsor decisions. Consult your adviser about suitability, especially for §1031 exchanges. For more details, please contact:
- Al DiNicola adnicola@fiduciarycm.com
- Direct: 239 691 8098
- Schedule Appointment
Advisory services are offered through Fiduciary CM, an SEC-registered adviser. Investments involve risk and are not guaranteed. Always refer to offering documents for full risk disclosures. Delaware Statutory Trust (DST) investments involve risks associated with commercial real estate ownership and are not suitable for all investors. These risks may include, but are not limited to, loss of principal, illiquidity, tenant vacancy, financing risk, interest rate fluctuations, property value declines, economic and market conditions, and risks associated with sponsor and property management decisions. Please refer to the applicable Property Private Placement Memorandum (PPM) for a complete discussion of the risks and considerations specific to that offering. Securities-related activities, where applicable, are conducted through the author’s then-current registered broker-dealer, member FINRA/SIPC. Current registration information is available through FINRA BrokerCheck. Past performance is not indicative of future results. Neither the Registered Representative nor the Broker-Dealer can control or guarantee future decisions made by the DST sponsor, asset manager, property manager, tenants, lenders, or other third parties involved in the operation of the property. Past performance is not indicative of future results. For educational purposes only; not tax, legal, securities, or investment advice and not an offer or solicitation to buy or sell securities.